In the quiet margins of rural landscapes where livestock farming has outpaced infrastructure, antibiotics meant to heal animals are instead accumulating in water and soil, reshaping microbial life in ways that threaten human health. Researchers have found that multi-soil-layering systems — gravity-fed, locally built arrangements of stacked earth — can intercept this contamination, degrading florfenicol and stripping nitrogen from wastewater without electricity or specialized expertise. It is a reminder that some of our most pressing modern problems may yield, at least in part, to solutions roo